Capturing CO <subscript>2</subscript> to reversible ionic liquids for dissolution pretreatment of cellulose towards enhanced enzymatic hydrolysis.
In: Carbohydrate polymers, Jg. 204 (2019-01-15), S. 50
Online
academicJournal
Zugriff:
To overcome the natural recalcitrance of cellulose for glucose production in aqueous media catalyzed by enzyme, in this study, a dissolution pretreatment strategy was developed by using in situ formed CO 2 -based reversible ionic compounds (RICs)/DMSO mixed organic electrolytes under mild conditions. The influences of the constitution of RICs, CO 2 pressure, dissolution pretreatment time on the physic-chemical structure of cellulose were investigated systematically by FTIR, XRD, SEM, AFM towards in-depth understanding of the correlations between the pretreatment conditions, micro-scale structure and enzymatic saccharification of cellulose. The results showed that the tetramethyl guanidine (TMG) based RICs solvent system [TMGH] 2 + [O 2 COCH 2 CH 2 OCO 2 ] 2- /DMSO (X RICs = 0.1, X RICs : the mole fraction of the formed RICs in the mixture) presented the best performance, which was evidenced by 100% glucose yield after the dissolution-regeneration pretreatment strategy under mild conditions (T = 60 °C, Pco 2 = 2.0 MPa, t = 2 h). Furthermore, the solvent system have good recyclability and usability.
(Copyright © 2018 Elsevier Ltd. All rights reserved.)
Titel: |
Capturing CO <subscript>2</subscript> to reversible ionic liquids for dissolution pretreatment of cellulose towards enhanced enzymatic hydrolysis.
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Autor/in / Beteiligte Person: | Li, X ; Xu, Q ; Shen, H ; Guo, Y ; Wu, M ; Peng, Y ; Zhang, L ; Zhao, ZK ; Liu, Y ; Xie, H |
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Zeitschrift: | Carbohydrate polymers, Jg. 204 (2019-01-15), S. 50 |
Veröffentlichung: | <1992-> : Barking : Elsevier Applied Science Publishers ; <i>Original Publication</i>: London [Eng.] : Applied Science Publishers, c1981-, 2019 |
Medientyp: | academicJournal |
ISSN: | 1879-1344 (electronic) |
DOI: | 10.1016/j.carbpol.2018.09.085 |
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